Gas-lamp.



A. H. HUMPHREY.

GAS LAMP.

APPLICATION FILED JULY 24. 1907. I

Patented May 25, 1909.

Lrrll-vlllrll it 7 H 0 l Vanna attain ms mmms PETERS 50., wnsumarom n c.

ALFRED H. HUMPHREY, OF NEW YORK, N. Y.

GAS-LAMP.

Specification of Letters Patent.

Patented May 25, 1909.

Application filed July 24, 1907. Serial No. 385,322.

To all whom it may concern:

Be it known that I, ALFRED H. HUMPI-IREY, a citizen of the United States, residing at the city of New York, county of New York, State of New York, have invented certain new and useful Improvements in Gas -Lamps, of which the following is a specification.

This invention relates to improvements in gas lamps.

My present invention relates particularly to improvements in pilot burners for gas lamps, and is especially adapted and designed by me for use in connection with my improved gas lamps having inverted burners, such as are illustrated and described in Letters Patent No. 841,323, issued to me on the 15th day of January, 1907, and in my application for Letters Patent, filed May 15, 1907, Serial No. 375,823, and I have illustrated the same as applied to a structure such as is shown in the said applications, although it is adapted for use in various other relations.

The main object of this invention is to provide an improved gas lamp in which the pilot burner is not likely to be extinguished by explosions or the like due to the lighting of the main burners, or by the burning of the main burners.

Further objects, and objects relating to details of construction, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which,

Figure 1 is a central vertical section of a gas lamp embodying the features of my invention, portions of the shade being broken away. Fig. 2 is a detail horizontal section taken on a line corresponding to line 22 of Fig. 1. Fig. 3 is a detail section through the valve taken on a line corresponding to line 33 of Fig. 1. Fig. 4 is a detail vertical section of a modified construction.

In the drawing, the sectional views are taken looking in the direction of the little arrows at the ends of the section lines, and similar numerals of reference refer to similar parts throughout the several views.

Referring to the drawing, the gas delivery pipe is preferably made up of the supply pipe burners 7 are connected.

1, having a T-coupling 2 at its lower end to which the pipe sections 3 and 1 are connected, the section 3 being a dummy. At the lower end of the gas delivery pipe is a valve casing 5 which controls the delivery of the to the gas delivery ring 6, to which the These burners are preferably of the Bunsen type, being provided with suitable burner tips, as 8, and valves, as 9. The burners are preferably arranged through the outwardly-projecting flange 11 on the lower end of the chimney 10 with their tips below and their valves above the same. The chimney flange is preferably turned downwardly at its outer edge, as at 12, and is also preferably provided with an upwardly-projecting flange-like portion 18. A chimney casing 14-, having an outwardly-projecting flange 15 at its lower end, is arranged about the chimney in a spaced relation thereto to form a conduit or passage for air, the chimney casing being open at its upper end, which is preferably arranged so that it is somewhat below the upper end of the chimney. The chimney casing preferably rests on the upwardly-projecting portion 13 of the chimney flange and is provided with openings 15 through which the burners 7 are arranged. The chimney and. casing are preferably connected by means of suitable bolts, as 16, the casing being connected to the pipe sections 3 and 4 by means of suitable clips, as 17.

An outer casing 18, having an outwardly and downwardly projecting flange 19 at its lower end, is provided. The outer casing is arranged above the valve casing 5, as clearly appears from the drawing. The flange 19 of the outer casing serves as a support for the shade 20. The outer casing is preferably centered and supported by means of the bracket-like projections 21 on the chimney casing. The upper end of the outer casing is open and is preferably protected by means of the deflector 22 which projects outwardly beyond the same.

The globe, as 23, is carried by the globe supporting band 24, which is adapted, when in its closed'position, toclose against the flange 19 on the outer casing. The globesupporting band is adjustably supported, being preferably hinged, so that it may be swung down out of the way when it is desired to secure access to the burners, mantles, or the like. The hinge preferably consists of the outwardly and downwardly-.pro-

jecting hinge member on the valve casing 5 and the outwardly-projecting hinge member 26 on the globe-supporting band, the two hinge members being connected by a suitable pintle, as 27. The globe-supporting band is held in its closed position by the pin 28 which is adapted to engage over a suitable stop or catch 29 provided therefor. The globe-supporting band is provided with a double series of perforations, as 30 and 31, which are separated by the inwardly-projecting flange 32 carried by the band. This flange is adapted, when the globe-supporting band is in its closed position, to coact with the flange on the chimney in separating the chamber formed by the globe from the chamber above the chimney flange. The advantage of this arrangement is described indetail in my applications for patent hereinbefore referred to.

The mantles 37 are carried by the mantlesupporting plate 33 which is preferably adapted to close the lower end of the chimney. This mantle-supporting plate is carried on the rod 34, arranged through a lug or ear 35 on the flange 12. The plate is held in its closed position by means of a button 36.

The valve casing 5 is provided with a trap chamber 38 to which the gas delivery pipe is arranged to deliver. This chamber is connected by the passage 39 to the valve cham ber for the valve 40, which is preferably of the rotary or plug type. The valve 40 is, as illustrated, a hollow valve, and is provided with ports 41 and 42. The port 41 is adapted to be brought into registry with the passage 39 for opening the valve. The valve stem 43 is provided with a stop pin 44 for limiting its movement. On one side of the valve casing is a pilot burner chamber 45, which is connected to the inlet or trap chamber 38 of the valve casing by means of the passage 46, and to the valve chamber by means of the passage 47. Both of these passages 46 and 47 are preferably provided with valves 48 and 49, respectively, whereby the delivery of the gas therethrough may be regulated. The passage 47 is controlled by the valve 40, the port 42 of the valve being adapted to be brought into registry with the passage 47 during the opening movement of the valve, thereby flashing the pilot, the valve being shown in the drawing partially open and in position to flash the pilot. By this arrangement of the ports, the gas is supplied to the main burners somewhat before the pilot burner is flashed, and the continued movement of the valve cuts off the flashing supply of gas to the pilot. The valve 48 may be acl'usted to regulate the continuous flame of t e pilot. The pilot 50 is connected to the pilot chamber 45 and is arranged with its tip within the casing 14, as clearly appears from the drawing.

opening 51 is provided through the wall of the chimney for admitting the flashing flame of the pilot for igniting the burners. The pilot is preferably rigidly supported so as to deliver through the opening 51 when flashed by means of the bracket 52. By this arrangement, the pilot burner is located and protected so that it is not affected by the explosions which are likely to occur in lighting the main burners, or in turning them off also it is out of the path of the products of combustion, so that it is not likely to be-.

come extinguished from that cause. The pilot is also protected from drafts of air, which might extinguish the same.

The structure is very simple and economical, and at the same time is very satisfac tory.

While I have illustrated the same in the form preferred by me, and as applied to one of my lamp constructions, I desire to remark that it is applicable to various lamp constructions, and I have shown the same in connection with one of my gas lamps to illustrate one application thereof.

In the modified construction shown in Fig. 4, the pilot is arranged to deliver through the flange 12 of the chimney.

Other modifications will readily appear to those skilled in the art to which this invention relates.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a gas lamp, the combination with a gas delivery pipe, of a chimney having an outwardly-projecting flange at its lower end; an inverted main burner arranged through said flange with its tip below the same; a casing arranged about said chimney in a spaced relation therefrom, said casing being open at its upper end; a pilot burner arranged above said chimney flange with its tip within said casing, there being an opening through the wall of said chimney to admit the flashing flame of said pilot burner; means for supplying gas to said pilot burner for maintaining the same; and a valve adapted to control the delivery of gas to said main burner, said valve being adapted on the opening movement thereof to admit the gas to said pilot burner, wherebythe same is flashed to ignite the main burner.

2. In a gas lamp, the combination with a gas delivery pipe, of a chimney having an outwardly-projecting flange at its lower end; an inverted main burner arranged through said flinge with its tip below the same; a pilot burner arranged above said chimney flange, there being an opening through the wall of said chimney to admit the flashing flame of said pilot burner; means for supplying gas to said pilot burner for maintaining the same; and a valve adapted to control the delivery of gas to said main burner, said valve being adapted on the opening move ment thereof to admit the gas to said pilot burner, whereby the same is flashed to ignite the main burner.

3. In a gas lamp, the combination with a gas delivery pipe, of a chimney having an outwardly-projecting flange at its lower end; an inverted main burner arranged through said flange with its tip below the same a casing arranged above said chimney in a spaced relation therefrom, said casing being open at its upper end; and a flash pilot arranged above said chimney flange with its tip within said casing, there being an opening through the wall of said chimney to ad mit the flashing flame of said pilot.

4. In a gas lamp, the combination with a gas delivery pipe, of a chimney having an outwardly-projecting flange at its lower end;

an inverted main burner arranged through said flange with its tip below the same; and a flash pilot arranged above said chimney flange, there being an opening through the wall of said chimney to admit the flashing flame of said pilot.

5. In a gas lamp, the combination with a gas delivery pipe, of a main burner; a chimney adapted to carry away the products of combustion therefrom; a casing arranged about said chimney in a spaced relation therefrom, said chimney being open at its upper end; a pilot burner arranged with its tip within said casing, there being an opening through the wall of said chimney to admit the flashing flame of said pilot burner means for supplying gas to said pilot burner for maintaining the same, and a valve adapted to control the delivery of gas to said main burner, said valve being adapted on the opening movement thereof to admit the gas to said pilot burner, whereby the same is flashed to ignite the main burner.

6. In a gas lamp, the combination with a gas delivery pipe, of a chimney; a plurality of inverted burners grouped about said chimney, and a flash pilot arranged on the outside of said chimney, there being an opening in said chimney to admit the flashing flame of said pilot to the chimney above said burners.

7. In a gas lamp, the combination with a gas delivery pipe, of a chimney; an inverted burner comprising a burner tip and valves, arranged through the wall of said chimney with its tip below and its valves without the same; and a flash pilot arranged on the outside of said chimney, there being an opening in said chimney to admit the flashing flame of said pilot to the chimney above said burner.

8. In a gas light fixture for a cluster of inverted mantles, a gas supply pipe, a gas ring, a tubular chimney, a valve for supplying gas to a pilot tube, a pilot tube terminating outside the chimney, an opening in the chimney wall opposite such termination, and means for carrying, below the chimney, a cluster of inverted mantles, and means for supplying gas thereto from above.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

ALFRED ll. HUMPHREY. [L 3.]

l/Vitnesses:

J. M. CoLEs, E. GRIFFIN. 

